公开(公告)号：US11028186B2

公开(公告)日：2021-06-08

申请号：US16309989

申请日：2017-06-15

Applicant: NEC CORPORATION

Inventor： Kiyohiko Toyama ,  Masatoshi Iji ,  Midori Shimura ,  Shukichi Tanaka

IPC: C08B3/16 ,  C08K3/04

Abstract: A cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, a long-chain organic group having 7 or more carbon atoms and a high refractive-index organic group.

公开(公告)号：US20150141639A1

公开(公告)日：2015-05-21

申请号：US14404247

申请日：2013-05-31

Applicant: NEC Corporation

Inventor： Kiyohiko Toyama ,  Massatoshi Iji ,  Shukichi Tanaka

IPC: C08B3/06 ,  C08B3/10

CPC classification number: C08B3/06 ,  C08B3/00 ,  C08B3/08 ,  C08B3/10 ,  C08B3/16 ,  C08B3/20 ,  C08B3/22 ,  C08L1/10 ,  C08L1/12 ,  C08L1/14

Abstract: A process for producing a cellulose derivative, including reacting a reactant and a cellulose or a derivative thereof in a solid-liquid heterogeneous system to form a cellulose derivative containing a long-chain organic group having 5 or more carbon atoms introduced therein, in a swollen state, and performing solid-liquid separation to obtain the cellulose derivative containing a long-chain organic group introduced therein.

Abstract translation: 一种生产纤维素衍生物的方法，包括使反应物和纤维素或其衍生物在固 - 液异相体系中反应，形成含有引入其中具有5个或更多碳原子的长链有机基团的纤维素衍生物 状态，进行固液分离，得到含有长链有机基团的纤维素衍生物。